Yarn-twisting mechanism.



:ILED F313, 1

Patented Tem.

' the advantage that on very fine yarns the To all whom it may concern. i

the county of Richland, respectively, in the 'ing had to the accompanying drawings,

UNITED srafr as PATENT curios.

DANIEL PORTER,

OF NEW BROOKLAND, AND EiEWALL K. OLIVER, OF COLUMBIA, SOllTH CAROLINA.

YARN-TVISTING MEGHAN 135M.

Sp c n of Letters Pahnt- Patented Dec, 16, 1913. Application filed February 13, 1913. Serial No. 748,140.

being threaded or coupled up when broken or when. a new spindle is to be started in action without the necessity of stopping the machine or in any wise interfering with the operation of other spindles.

Referring to the accompanying drawings, Figure l is a fragmentary elevation, partly diagrammatic of a portion of a yarn twist mg machine embodying the prescntimprovement; Fig. 2 is an end elevation of the parts illustrated in Fig. 1.

Like letters of reference in the several figures indicate the same parts.

Be it known that we, DANIEL Ponrrn and Sawmill K. OLIVER, citizens of the United States, and residents of New Brookland, in the county of Lexington, and Columbia, in

tain new anduseful Improvements in Yarn- Twisting Mechanism; and we do hereby declare the following to be a full, clear, and exact description of the same, reference be- State of South Carolina, have invented cer- I specification, and to the forming part of this of reference marked.

figures and letters thereon. I

This invention relates more particularly to yarn twisting mechanism, making use of l what is known as ring twisters, which effect the twisting of the yarn as the same is fed to the bobbins or spindles, and it has for its object. to provide an improved means for guiding, feeding andcomloining the strands during their passage from the creel spools to the v spindles, whereby the quality of the yarn will be improved, the production of corkscrew or irregularly twisted arn pre vented, production increased and abor cost decreased.

A further object of theinvention is to pro 1 vide a device which, while operating to feed I l grammatically represented at A, the spindles are indidated at B, the bobbins on the spindles at C and the ring spinners at D, each of the latter, of course, embodying a traveler of ordinary or preferred construction which is adapted to rotate on its ring or guide around the bobbin. The spindles are driven as usual from a roller by belts passing around the individual strands or yarns are fed from the creel. spools throu h guides or eyes E in each of which the desired number of individual yarns are brought into proximity or together, thence around feeding and guiding rollers to be presently described, thence through eyes or guides F, and to the ring travelers. The feeding and the construction and operation of which constitute the leading novelty in the combination forming the present invention are preferably two in number, each independent of the other and each journaled separately in bearings such as indicated at G. The two rollers lettered ,ll

and combine the single yarns between the creel frame and spindles, will serve as astop motion in any case where a thread breaks at a point in advance of the spindle and after leaving the roller, whereby waste is prevented and whereby the broken thread is prevented from dying loose to interfere with other yarns. I

A further object of the invention is to pro vide an apparatus in' which the necessity for employing weight rollers is overcome with I usually the forward and larger roller H, and

preferably both oi the rollers, bein p0s1- tlvely driven by suitable (lIlVlDg mec ianism rolls never become bruised by rough contact I (not shown) to rotate in .the same direction. l

with each other, and whereby the danger of The yarns leading from the eyes E are the yarn being nipped between the rolls and passed around the two rollers a number of .tcd irregularly or broken is avoided, as well times so as to include said rollers in a sense asjall danger ot the yarn being fed over unused portions of the rolls, whereby it would be liable to be rendered dirty, greasy or rusty. A y

A further object of the invention is to provide a structure which may be dotted without stopping the spindles or mechanism and which will likewise permit of any yarn vention that the several loops shall be that the successh 'e loops enter and are guided. by the succeeding grooves passlng In said drawings, the creel spools are diaspindle pulleys b and the guiding rollers,

of single loops, it being essential to the in-.

ii, and the yarn is led around the rollers so and I are spaced apart an f appreciable dlstance, one of ,the rollers,

ice

divided to form in effect a ,light rollers as indicated for example by tion both rollers are 'In the example illustrated the dotted lines 2', in Fig. 1, but ordinarily .asabove stated in. the preferred construcdriven positively and at asp'eedto feed the yarns at the same rate. while the roller H is shown of larger diameter than the roller I, the grooves are of such depth that --the diameter at the bottom of the grooves.

corresponds to the diameter of the roller I and both rollers are positively driven at the same speed.

"loop of the yarn is subjected to uniform tension or pull, and each separate'yar'n will With this arrangement each be fed at a uniform rate to the spindle bobbin. 1

Owing to the. fact that the loops passing around the two. rollers are kept separate from each other, if the end of the yarn next the spindleshas no tension whatever upon it, as, for instance, when it is hanging freely, the loops will be sufiiciently loose to prevent any feeding of the yarn by the roftation of the rollers, buttthe slightest ten- SlOI! 0n=the end of theyarn, at once causes a tightening ofthe loops around the rollers, wlth the result that the yarn-is positively fed, thereby relieving the mug spinner from all work save the maintenance of-a very sli ht tension on the yarn. It follows also that the breaking of a yarn at once arrests,

. its,-feed so that there is no liability of the around the rolls in the easiest and simplest wav'when 1 t .is desired to start a new spinyarn becoming snarled up or in any way interfering with the feeds of adjacent yarns or the operation of other spindles. It also follows that the bobbin orany spindle may be doifed without stopping the operation vof therolls, and. the yarns may be passed dle in "operation, while the rollers are in motion, the operator having simply to wind the yarn around the two rollers in loose loops each in its appropriate groove, allowing the end to be free or being kept loose until'it is threaded through the traveler I and properly attached to the bobbin. 7 Practical operation demonstrates that with an apparatus such as herein described better and more uniform results are secured, with no waste from snarling; the use of all weight or gravitating rollers is avoided and there is no danger of the yarn being nipped between contacting rollers and fed irregularly, or fed at all when the ring traveler is not in operation.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States, is:

1. The combination with the series of spindles, rings and travelers, the creel and yarn guide eyes between the creel and travelers, of yarn feeding mechanism intermediate the yarn guide eyes embodyinga long horizontal positively driven roller, a corresponding second roller spaced therefrom, said rollers both coiiperating with the yarns for a series of spindles and being mounted in fixed bearings and out of frictional contactwith other rollers and adapted to both be included in a succession of spaced loopsof yarn between the creel and each spindle, respectively, and means for maintaining the individual loops of yarn spaced from each other.

2. The combination with the spindles, rings, travelers, creel and yarn guide eyes between the creel and travelers, of yarn feeding mechanism intermediate the creel andtravelers embodying a pair of proximate positively driven rollers each having a free and unobstructed space around the same, whereby the yarn may be freely wrapped in loops around the two rollers, one of said rollers having a series of grooves therein, each for the reception of a single loop of yarn, whereby the individual loops will be spaced from each other, the yarn engaging portions of the two rollers being of the same diameter'whereby the yarn will be fed uniformly by both rollers.

DANIEL PORTER.

SEWALL K. OLIVER.

Witnesses: HENRY Burr,

J. C. LYBRAND. 

